survey organization polls 500 registered voters and one of the pieces of information they collect is the voters' incomes. The average income in the sample is $65,000 per year and the SD is $35,000. The histogram of the sampled incomes is skewed to the right, and 110 (22%) of the sampled voters saying they have an income of $150,000 or more. Calculate a 95%-confidence interval for the percentage of all voters in the population who have an income of $150,000 or more.

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